From Heavy Fermion and Spin-Glass Behavior to Magnetic Order in CeT_4M Compounds

Toliński, T.; Kowalczyk, A.; Falkowski, M.; Synoradzki, K.; Chełkowska, G.; Hoser, A.; Rols, S.

doi:10.12693/APhysPolA.121.1014

Journal

Acta Physica Polonica A

2012 | 121 | 5-6 | 1014-1018

Article title

From Heavy Fermion and Spin-Glass Behavior to Magnetic Order in CeT_4M Compounds

Authors

T. Toliński , A. Kowalczyk , M. Falkowski , K. Synoradzki , G. Chełkowska , A. Hoser , S. Rols

Content

Full texts:

http://przyrbwn.icm.edu.pl/APP/PDF/121/a121z5p07.pdf [remote]

Title variants

Languages of publication

Abstracts

We report on the transitions between the ferromagnetic order, spin-glass behavior, heavy fermion and fluctuating valence state in a series of isostructural compounds CeT_4M (T = Ni, Cu; M = Al, Ga, Mn). The dilution of Ce or the T and M elements allowed us to follow the physical properties evolution employing the measurements of the heat capacity, dc magnetic susceptibility, frequency dependent ac magnetic susceptibility, magnetization relaxation, inelastic neutron scattering and also the X-ray photoemission spectroscopy. It is shown that the Mn rich compounds lean towards the spin glass behavior. For the compounds governed by the close to localization Ce 4f states the effect of the crystal electric field has been studied. It has been shown that the spin glass-like behavior can significantly influence the physics of the CeT_4M compounds.

Keywords

71.20.Lp 71.27.+a 75.30.Mb 75.30.Cr 75.50.Lk 78.70.Nx

Discipline

Publisher

Journal

Acta Physica Polonica A

Year

2012

Volume

121

Issue

5-6

Pages

1014-1018

Physical description

Dates

published

2012-05

Contributors

author

T. Toliński

Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

A. Kowalczyk

Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

M. Falkowski

Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

K. Synoradzki

Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

G. Chełkowska

Institute of Physics, Silesian University, Katowice, Uniwersytecka 4, 40-007 Katowice, Poland

author

A. Hoser

Helmholtz-Zentrum, Glienicker Straße 100, D-14109 Berlin, Germany

author

S. Rols

Institut Laue Langevin, 6 rue Jules Horowitz, B.P. 156 F-38042, Grenoble Cedex 9, France

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Document Type

Publication order reference

Identifiers

DOI

10.12693/APhysPolA.121.1014

YADDA identifier

bwmeta1.element.bwnjournal-article-appv121n5-6p07kz